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TLE9185QXV33 Datasheet(PDF) 24 Page - Infineon Technologies AG

Part # TLE9185QXV33
Description  BLDC Driver
Download  192 Pages
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

TLE9185QXV33 Datasheet(HTML) 24 Page - Infineon Technologies AG

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TLE9185QXV33
BLDC Driver
System Features
Datasheet
24
Rev.1.0
2021-01-21
5.4.7
Software Development Mode
The Software Development Mode is a dedicated device configuration especially useful for software
development.
Compared to the default device user mode operation, this mode is a super set of the state machine. The device
will start also in Init Mode and it is possible to use all the modes and functions with following differences:
• Restart Mode or Fail-Safe Mode (depending on the configuration) is not reached due to watchdog failure
but the other reasons to enter these modes are still valid.
Software Development Mode entry
For timing and configuration details, refer to Chapter 5.2.
Note
• After Init Mode, the pull-up is released as the INTN/TEST pin acts as output then to drive the INTN signal.
• If the device enters Fail-Safe Mode due to VCC1 short circuit to GND during the Init Mode, the Software
Development Mode will not be entered and can only be reached at the next power-up of the device after
the VCC1 short circuit is removed.
• The absolute maximum ratings of the pin INTN must be observed. To increase the robustness of this pin
during debugging or programming a series resistor between INTN and the connector can be added.
Watchdog in Software Development Mode
The Watchdog is enabled in Software Development Mode as default state. One INTN event is generated due
to wrong watchdog trigger.
It is possible to deactivate the integrated Watchdog module using the WD_SDM_DISABLE bit. After disabling
the Watchdog, no INTN events are generated and the WD_FAIL bit will also not be set anymore in case of a
trigger failure. It is also possible only to mask / unmask the INTN event of the WD in Software Development
Mode by using the bit WD_SDM. In case of unmasking, a WD trigger fail will only lead to WD_FAIL bit set.
5.5
Transition Between States
This chapter describes the transition between the modes triggered by power-up, SPI commands or wake-up
events.
5.5.1
Transition into Init Mode
The device goes into Init Mode in case of a power-up or after sending a soft-reset in Normal or Stop Mode.
Prerequisites:
•Power OFF
Table 11
Normal Mode Settings (Software Development Mode active)
Part/Function
Default
State
Description
VCC1
ON
•VCC1 is active
WD
ON
• WD is on, but will not trigger transition to Fail-Safe Mode or Restart
Mode
BD/CP
OFF
• The Bridge Drivers and Charge Pump may be configured and switched
ON or OFF by SPI
Cyc. Wake
OFF
•Can be configured


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